From ce2b21a4e5ce042c0a42c9db8fa9e0f849427d5e Mon Sep 17 00:00:00 2001 From: John Stultz Date: Mon, 23 Oct 2017 14:32:50 -0700 Subject: usb: dwc2: Fix UDC state tracking It has been noticed that the dwc2 udc state reporting doesn't seem to work (at least on HiKey boards). Where after the initial setup, the sysfs /sys/class/udc/f72c0000.usb/state file would report "configured" no matter the state of the OTG port. This patch adds a call so that we report to the UDC layer when the gadget device is disconnected. This patch does depend on the previous patch ("usb: dwc2: Improve gadget state disconnection handling") in this patch set in order to properly work. Cc: Wei Xu Cc: Guodong Xu Cc: Amit Pundir Cc: YongQin Liu Cc: John Youn Cc: Minas Harutyunyan Cc: Douglas Anderson Cc: Chen Yu Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org Acked-by: Minas Harutyunyan Tested-by: Minas Harutyunyan Reported-by: Amit Pundir Signed-off-by: John Stultz Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/gadget.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/usb/dwc2/gadget.c') diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 7fd0e38c94e0..603c21612051 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3202,6 +3202,8 @@ void dwc2_hsotg_disconnect(struct dwc2_hsotg *hsotg) call_gadget(hsotg, disconnect); hsotg->lx_state = DWC2_L3; + + usb_gadget_set_state(&hsotg->gadget, USB_STATE_NOTATTACHED); } /** -- cgit v1.2.3